Home
Class 12
PHYSICS
Assertion: We prefer a potentiometer wit...

Assertion: We prefer a potentiometer with a longer bridge wire.
Reason : By doing this, the sensitivity of the bridge is increased because for longer wire potential drop per unit length will be small.

A

Assertion is True, Reason is True, Reason is a correct explanation for Assertion

B

Assertion is True, Reason is True, Reason is not a correct explanation for Assertion

C

Assertion is True, Reason is False

D

Assertion is False but Reason is True.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    TARGET PUBLICATION|Exercise Critical Thinking|24 Videos

  • CURRENT ELECTRICITY

    TARGET PUBLICATION|Exercise Competitive Thinking|48 Videos

  • CIRCULAR MOTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|11 Videos

  • ELASTICITY

    TARGET PUBLICATION|Exercise Evaluation test|14 Videos

Similar Questions

Explore conceptually related problems

Why do we prefer potentiometer with a longer bridge wire?

The fall of potential per unit length of wire is called……..

Assertion: A slide wire bridge is also called a metrebridge. Reason: It is because, the length of wire in a slide wire bridge is one metre.

A potentiometer consists of a wire of length 4 m and resistance 10 Omega . If is connected of cell of emf 2V . The potential difference per unit length of the wire will be

A cell of negligible internal resistance is connected to a potentiometer wire and potential gradient is found. Keeping the length as constant, if the radius of potentiometer wire is increased four times, the potential gradient will become (no series resistance in primary)

A potentiometer wire has a length of 4 and a resistance of 8 ohm. It is connected in series with a cell of e.m.f. 2 V and internal resistance 2 ohm. The potential drop per unit length of the wire is

The length of a potentiometer wire is 10m and a potential difference of 2 volt is applied to its ends. If the length of its wire is increased by 1m, the value of potential gradient in volt/m will be (potential difference across potentiometer wire remain same)

If the length of a potentiometer wire is increased by keeping constant potential difference across the wire, then